Automobile body repair jack



Aug. 12, 1952 G. J. MORGENTHALER AUTOMOBILE BODY REPAIR JACK 2 SHEETSSHEET 1 Filed Dec. 22, 1949 Goff/fat J.M0rgenfha/er INVENTOR.

BY mqx 12, 1952 G. J. MORGENTHALER 2,606,469

AUTOMOBILE BODY REPAIR JACK Filed Dec. 22, 1949 2 SHEETSfSHEET 2 p i1lillmmnunnnnnnnnuunnnun Gaff/fab J. Morgen/haw INVENTOR.

Patented Aug. 12, 1952 UNITED STATE 2 Claims.

The present invention relates to new and useful improvements in automobile body repair jacks to straighten dents, depressions and similar damage to the fender and body panels of an automobile.

An important object of the invention is to provide a repair jack of this character which straightens the dent or other irregularity by outward pressure subjected by the jack placed internally of the panel.

Another object of the invention is to provide a repair jack of this character capable of working in close quarters, such as the hollow door panels of an automobile as well as in the body panels or rear wheel housing panels and which are usually inaccessible to'the hand of a mechanic for holding body repair anvils or other tools usually employed for this purpose.

A further object of the invention is to provide a repair jack provided with self-adjusting pads or pressure plates carried at the outer ends of swingable arms and actuated by a traveler working on a screw to subject the pads to a spreading action without danger of slipping of the pads on the work.

A still further object is to provide a device of this character of simple and practical construction, which is strong and durable, efficient and reliable in operation, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a perspective view of an automobile showing the jack in position behind the rear wheel housing panel;

Figure 2 is a side elevational view of the jack;

Figure 3 is a similar view on an enlarged scale and showing the jack in closed position;

Figure 4 is a similar view taken at right angles to Figure 3; and

Figures 5 and 6 are transverse sectional views taken respectively on the lines 5-5 and 66 of Figure 3.

Referring now to the drawings in detail, wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a screw having a Wrench en gaging socket 6 at one end. A block I is suitably held at the other end of screw 5 against sliding movement on the scew while the screw rotates in the block and to opposite sides of the block arms S P NT r 2,606,469- i j; AUTOMOBILE BODY REPAIR JACK -f v Gottlieb J. -Morgenthaler, Phi ladelphiap lai; Application December 22, 1949, SerialNo; i3 4i5 ll3 (01.81- 15) 8 and 9 are pivoted by screws or other suitable fasteners 9a. Pins I0 and II are carried at the outer ends of arms 8 and 9 and on which pressure plates [2 and I3 are pivotally mounted by apertures lugs It at the rear of the plates. Pads 15 are secured to the outer surface of the plates by screws IS.

A traveler block I! is threadedly connected to screw 5 for traveling thereon and a pair of rigid metal straps [8 are pivoted to the opposite sides of traveler H by means of screws or the like l9 and are formed with eyes 20 at their opposite ends for pivotally mounting on pin ID of pressure plate [2. Similar metal straps 2| are also pivoted at one end on the screws l9 and pivoted at their opposite ends on the pin H for pressure plate 13.

The tool is designed primarily for use in close quarters, such as behind the rear wheel housing panel 22, the hollow door panel 23, or similar normally inaccessible parts of an automobile body. As shown in Figure 1 of the drawings, the jack is inserted upwardly behind or under the panel 22 and pressure plates 12 and I3 positioned against the opposed inner surfaces of the panel. Screw 5 is then turned by a wrench engaged in socket 6 which thus causes traveler H to move downwardly on the screw pulling straps l8 and 2| with the traveler and thus causing arms 8 and 9 and the pressure plates [2 and I3 at the outer ends of the arms to swing outwardly to thus subject the panel 22 to outward pressure to remove dents or other irregularities therefrom.

The pressure plates l2 and I3 are self-adjusting on the pins l0 and l l to thus hold the pressure plates firmly against the work without danger of slipping.

Pads l5 of suitable shape are interchangeably attached to the pressure plates l2 and [3 by the screws [6.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. An automobile body repair jack comprising a feed screw, a block carried at one end of the screw and held against longitudinal movement thereon while the screw is rotated in the block, arms ivoted at one end to the block and projecting outwardly therefrom, pins at the outer ends of the arms, pressure plates pivoted on the pins for self-adjusting movement with work engaged by the plates, a traveler on the screw, and metal straps pivoted at one end to the opposite sides of the traveler and pivoted at their other ends to the respective pivot pin for the pressure plates to swing the arms outwardly by a pulling force subjected to the straps when the screw is turned in a. predetermined direction.

2. An automobile body repair jack comprising a feed screw, a pair of arms swingably carried at one end of the screw, 3, traveler on the screw,

metal straps pivoted at one end to the traveler,

a pair of pressure plates, and a single pivot 4 connecting each of the pressure plates to the free end portion of one of the arms as well as to the free end portion of one of the straps for outward swinging self-adjusting movement of the plates at opposite sides of the screw by the turning of the screw in a predetermined direction.

GOTTLIEB J. MORGENTHALER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 562,791 Bacon June 30, 1896 2,341,278 Long Feb. 8, 1944 2,352,703 Fries July 4, 1944 Ferguson et a1 Aug. 17, 1948 

